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- Q21041417 subject Q6811912.
- Q21041417 subject Q6812555.
- Q21041417 subject Q7011883.
- Q21041417 abstract "An observation due to Hayyim Selig Slonimski concerning the sequence of carry digits in a multiplication table. Namely, the sequence of carry digits is the Farey sequence.This observation allowed Slonimski to create very compact multiplication tables for use in hand calculations. He received several awards for different devices for presenting these tables. The most common format were Joffe Bars similar to Napier's Rods. Joffe Bars were popular in Eastern Europe in the late 19th and early 20th century.".
- Q21041417 wikiPageWikiLink Q1358538.
- Q21041417 wikiPageWikiLink Q1396592.
- Q21041417 wikiPageWikiLink Q21041417.
- Q21041417 wikiPageWikiLink Q6811912.
- Q21041417 wikiPageWikiLink Q6812555.
- Q21041417 wikiPageWikiLink Q7011883.
- Q21041417 wikiPageWikiLink Q976296.
- Q21041417 comment "An observation due to Hayyim Selig Slonimski concerning the sequence of carry digits in a multiplication table. Namely, the sequence of carry digits is the Farey sequence.This observation allowed Slonimski to create very compact multiplication tables for use in hand calculations. He received several awards for different devices for presenting these tables. The most common format were Joffe Bars similar to Napier's Rods.".
- Q21041417 label "Slonimski's Theorem".